Very Useful this Black Bottle With Scalp Applicator, For Hair Oil, etc. ? You can apply them in lots of places such as costume party, home, salon competitions, travelling as dry cleaning bottle or filling bottle to store hair colorants, hair shampoo can Reuse as many times as you want. Simply wash the bottle and refill it. ? Out of the five comb nozzles, three in the center are open that dispense the hair solution directly to scalp/ hair roots. ? Fill bottle with any hair solution, scalp conditioner, growth oil, medicated shampoos, hair oils, and any hair solution ?This Comb bottle is perfect for day to day use and for travel as well. Conveniently fits in your purse/bag. Carry it anywhere with you.